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cloud_service.go
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cloud_service.go
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// Copyright 2021 Fraunhofer AISEC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// $$\ $$\ $$\ $$\
// $$ | $$ |\__| $$ |
// $$$$$$$\ $$ | $$$$$$\ $$\ $$\ $$$$$$$ |$$\ $$$$$$\ $$$$$$\ $$$$$$\
// $$ _____|$$ |$$ __$$\ $$ | $$ |$$ __$$ |$$ |\_$$ _| $$ __$$\ $$ __$$\
// $$ / $$ |$$ / $$ |$$ | $$ |$$ / $$ |$$ | $$ | $$ / $$ |$$ | \__|
// $$ | $$ |$$ | $$ |$$ | $$ |$$ | $$ |$$ | $$ |$$\ $$ | $$ |$$ |
// \$$$$$$\ $$ |\$$$$$ |\$$$$$ |\$$$$$$ |$$ | \$$$ |\$$$$$ |$$ |
// \_______|\__| \______/ \______/ \_______|\__| \____/ \______/ \__|
//
// This file is part of Clouditor Community Edition.
package orchestrator
import (
"context"
"errors"
"clouditor.io/clouditor/api/orchestrator"
"github.com/google/uuid"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"google.golang.org/protobuf/types/known/emptypb"
"gorm.io/gorm"
)
const DefaultTargetCloudServiceId = "00000000-0000-0000-000000000000"
const DefaultTargetCloudServiceName = "default"
const DefaultTargetCloudServiceDescription = "The default target cloud service"
func (s *Service) RegisterCloudService(_ context.Context, req *orchestrator.RegisterCloudServiceRequest) (service *orchestrator.CloudService, err error) {
if req == nil || req.Service == nil {
return nil, status.Errorf(codes.InvalidArgument, "service is empty")
}
if req.Service.Name == "" {
return nil, status.Errorf(codes.InvalidArgument, "service name is empty")
}
service = new(orchestrator.CloudService)
// Generate a new ID
service.Id = uuid.NewString()
service.Name = req.Service.Name
service.Description = req.Service.Description
// Persist the service in our database
s.db.Create(&service)
return
}
func (s *Service) ListCloudServices(_ context.Context, _ *orchestrator.ListCloudServicesRequest) (response *orchestrator.ListCloudServicesResponse, err error) {
response = new(orchestrator.ListCloudServicesResponse)
response.Services = make([]*orchestrator.CloudService, 0)
err = s.db.Find(&response.Services).Error
if err != nil {
return nil, status.Errorf(codes.Internal, "database error: %s", err)
}
return response, nil
}
func (s *Service) GetCloudService(_ context.Context, req *orchestrator.GetCloudServiceRequest) (response *orchestrator.CloudService, err error) {
if req == nil || req.ServiceId == "" {
return nil, status.Errorf(codes.InvalidArgument, "service id is empty")
}
response = new(orchestrator.CloudService)
err = s.db.First(&response, "Id = ?", req.ServiceId).Error
if errors.Is(err, gorm.ErrRecordNotFound) {
return nil, status.Errorf(codes.NotFound, "service not found")
} else if err != nil {
return nil, status.Errorf(codes.Internal, "database error: %s", err)
}
return response, nil
}
func (s *Service) UpdateCloudService(_ context.Context, req *orchestrator.UpdateCloudServiceRequest) (response *orchestrator.CloudService, err error) {
if req.Service == nil {
return nil, status.Errorf(codes.InvalidArgument, "service is empty")
}
if req.ServiceId == "" {
return nil, status.Errorf(codes.InvalidArgument, "service id is empty")
}
var count int64
err = s.db.Model(&orchestrator.CloudService{}).Count(&count).Error
if err != nil {
return nil, status.Errorf(codes.Internal, "database error: %s", err)
}
if count == 0 {
return nil, status.Error(codes.NotFound, "service not found")
}
req.Service.Id = req.ServiceId
err = s.db.Save(&req.Service).Error
if err != nil {
return nil, status.Errorf(codes.Internal, "database error: %s", err)
}
return req.Service, nil
}
func (s *Service) RemoveCloudService(_ context.Context, req *orchestrator.RemoveCloudServiceRequest) (response *emptypb.Empty, err error) {
if req.ServiceId == "" {
return nil, status.Errorf(codes.InvalidArgument, "service id is empty")
}
err = s.db.Delete(&orchestrator.CloudService{Id: req.ServiceId}).Error
if errors.Is(err, gorm.ErrRecordNotFound) {
return nil, status.Errorf(codes.NotFound, "service not found")
} else if err != nil {
return nil, status.Errorf(codes.Internal, "database error: %s", err)
}
return &emptypb.Empty{}, nil
}
// CreateDefaultTargetCloudService creates a new "default" target cloud services,
// if no target service exists in the database.
//
// If a new target cloud service was created, it will be returned.
func (s *Service) CreateDefaultTargetCloudService() (service *orchestrator.CloudService, err error) {
var count int64
s.db.Model(&orchestrator.CloudService{}).Count(&count)
if count == 0 {
// Create a default target cloud service
service =
&orchestrator.CloudService{
Id: DefaultTargetCloudServiceId,
Name: DefaultTargetCloudServiceName,
Description: DefaultTargetCloudServiceDescription,
}
// Save it directly into the database, so that we can set the ID
err = s.db.Create(&service).Error
if err != nil {
log.Infof("Created new default target cloud service %s", service.Id)
}
return service, err
}
return
}